Flexible Communication Frame Structures with Aligned Symbol Boundaries
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Solution Overview
Problem
The existing 3GPP frame structure does not adequately meet differentiated communication requirements, leading to inefficiencies in resource utilization and increased processing complexity.
Innovation Solution
The method allows for flexible adjustment of frame structures by varying cyclic shift code lengths and useful symbol lengths, aligning symbol boundaries for different subcarrier spacings, and configuring unavailable resources to reduce interference and improve resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the frame structure uses fixed cyclic shift code length and useful symbol length, then the symbol length remains consistent, but the communication system cannot meet differentiated communication requirements
Solution Approach 1:
The patent applies dynamics by making the cyclic shift code length and useful symbol length adjustable rather than fixed. The frame structure can dynamically adapt to different communication requirements by configuring different cyclic shift code lengths (first cyclic shift code length, second cyclic shift code length) and useful symbol lengths (first useful symbol length, second useful symbol length) while maintaining the same overall symbol length, thus achieving versatility without excessive complexity
Solution Approach 2:
The patent changes parameters by allowing variation in cyclic shift code length and useful symbol length as configurable parameters. Different frame structures can be created by changing these parameters (first cyclic shift code length vs. second cyclic shift code length, first useful symbol length vs. second useful symbol length) while keeping the total symbol length constant, enabling the system to meet different communication needs through parameter adjustment
2Adaptability or versatility
If different frame structures with different symbol lengths are used to meet differentiated requirements, then communication flexibility is improved, but symbol boundary alignment is lost and processing complexity increases
Solution Approach 1:
The patent applies local quality by allowing different cyclic shift code lengths and useful symbol lengths within the same overall symbol length framework. Each frame structure can be locally customized for specific communication needs while maintaining global consistency in symbol length, which preserves symbol boundary alignment and simplifies terminal processing
Solution Approach 2:
The patent ensures equipotentiality by maintaining equal symbol lengths across different frame structures. Even though the internal composition (cyclic shift code length and useful symbol length) varies, the overall symbol length remains consistent, creating an equal playing field for processing and maintaining alignment without increasing terminal complexity
3Reliability
If existing frame structures are used without modification, then compatibility is maintained, but resource utilization efficiency decreases and fragmentation occurs
Solution Approach 1:
The patent applies segmentation by dividing the symbol into configurable cyclic shift code portions and useful symbol portions with different lengths. This segmentation allows flexible allocation of resources within the symbol, preventing fragmentation and improving utilization efficiency while maintaining compatibility with existing frame structure frameworks
Solution Approach 2:
The patent achieves universality by creating a flexible frame structure that can serve multiple communication scenarios. The same overall symbol length is maintained for compatibility, but the internal configuration (different cyclic shift code lengths and useful symbol lengths) can be adjusted to meet various communication requirements, making the system multi-functional
Data Source
AI summary
A communication method and apparatus are provided. In the method, when a symbol length remains unchanged, different cyclic shift code lengths and different useful symbol lengths may be configured, for example, a first cyclic shift code length and a second cyclic shift code length that are different, and a first useful symbol length and a second useful symbol length that are different, to flexibly adjust a frame structure.